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Optimised scheduling for weather sensitive offshore construction projects

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Abstract
The significant lead times and costs associated with materials and equipment in combination with intrinsic and weather related variability render the planning of offshore construction projects highly complex. Moreover, the way in which scarce resources are managed has a profound impact on both the cost and the completion date of a project. Hence, schedule quality is of paramount importance to the profitability of the project. A prerequisite to the creation of good schedules is the accuracy of the procedure used to estimate the project outcome when a given schedule is used. Because of the systematic influence of weather conditions, traditional Monte Carlo simulations fail to produce a reliable estimate of the project outcomes. Hence, the first objective of this research is to improve the accuracy of the project simulation by creating a procedure which includes both uncertainty related to the activities and an integrated model of the weather conditions. The weather component has been designed to create realistically correlated wind- and weather conditions for operationally relevant time intervals. The second objective of this research is to optimise the project planning itself by using both general meta-heuristic optimisation approaches and dedicated heuristics which have been specifically designed for the problem at hand. The performance of these heuristics is judged by the expected net present value of the project. The approach presented in this paper is tested on real data from the construction of an offshore wind farm off the Belgian coast and weather data gathered by the Flanders Marine Institute using measuring poles in the North Sea.
Keywords
Offshore construction, Weather simulation, Stochastic scheduling, Project scheduling

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Citation

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MLA
Kerkhove, Louis-Philippe, and Mario Vanhoucke. “Optimised Scheduling for Weather Sensitive Offshore Construction Projects.” OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE 66 (2017): 58–78. Print.
APA
Kerkhove, L.-P., & Vanhoucke, M. (2017). Optimised scheduling for weather sensitive offshore construction projects. OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE, 66, 58–78.
Chicago author-date
Kerkhove, Louis-Philippe, and Mario Vanhoucke. 2017. “Optimised Scheduling for Weather Sensitive Offshore Construction Projects.” Omega-international Journal of Management Science 66: 58–78.
Chicago author-date (all authors)
Kerkhove, Louis-Philippe, and Mario Vanhoucke. 2017. “Optimised Scheduling for Weather Sensitive Offshore Construction Projects.” Omega-international Journal of Management Science 66: 58–78.
Vancouver
1.
Kerkhove L-P, Vanhoucke M. Optimised scheduling for weather sensitive offshore construction projects. OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE. Elsevier ; 2017;66:58–78.
IEEE
[1]
L.-P. Kerkhove and M. Vanhoucke, “Optimised scheduling for weather sensitive offshore construction projects,” OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE, vol. 66, pp. 58–78, 2017.
@article{8511136,
  abstract     = {The significant lead times and costs associated with materials and equipment in combination with intrinsic and weather related variability render the planning of offshore construction projects highly complex. Moreover, the way in which scarce resources are managed has a profound impact on both the cost and the completion date of a project. Hence, schedule quality is of paramount importance to the profitability of the project. A prerequisite to the creation of good schedules is the accuracy of the procedure used to estimate the project outcome when a given schedule is used. Because of the systematic influence of weather conditions, traditional Monte Carlo simulations fail to produce a reliable estimate of the project outcomes. Hence, the first objective of this research is to improve the accuracy of the project simulation by creating a procedure which includes both uncertainty related to the activities and an integrated model of the weather conditions. The weather component has been designed to create realistically correlated wind- and weather conditions for operationally relevant time intervals. The second objective of this research is to optimise the project planning itself by using both general meta-heuristic optimisation approaches and dedicated heuristics which have been specifically designed for the problem at hand. The performance of these heuristics is judged by the expected net present value of the project. The approach presented in this paper is tested on real data from the construction of an offshore wind farm off the Belgian coast and weather data gathered by the Flanders Marine Institute using measuring poles in the North Sea.},
  author       = {Kerkhove, Louis-Philippe and Vanhoucke, Mario},
  issn         = {0305-0483},
  journal      = {OMEGA-INTERNATIONAL JOURNAL OF MANAGEMENT SCIENCE},
  keywords     = {Offshore construction,Weather simulation,Stochastic scheduling,Project scheduling},
  language     = {eng},
  pages        = {58--78},
  publisher    = {Elsevier },
  title        = {Optimised scheduling for weather sensitive offshore construction projects},
  url          = {http://dx.doi.org/10.1016/j.omega.2016.01.011},
  volume       = {66},
  year         = {2017},
}

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